 the stomach acids from coming back up into our esophagus. When that acid starts coming back up, that's called acid reflux, and it can cause chest pain. It can mimic heart attacks. It could even go all the way up to our vocal cords. And when they bathe in acid, we start having a chronic cough. And sometimes people think they have an infection, but it's actually the stomach acids coming back up. It turns out that certain foods like caffeine,